EN
Particular attention is devoted to the gypsum waste mantle of the Solec and Połaniec Basins. In well dried places, gypsum rock is covered with strontium-abundant (Sr) carbonate waste mantle. In hydrogenic landscapes, where groundwater and frequently bituminous substances are agents in the dissolving of gypsum, black clays with concretions are formed, including such elements as Mn or Fe.